Is each number unique, or do they start again for each service?

How to say “Is each number unique, or do they start again for each service?” in Japanese

In Japanese

番号(ばんごう)って全体(ぜんたい)で重複(ちょうふく)しないようになってるの？ それとも窓口(まどぐち)ごとに一番(いちばん)から？

Bangō tte zentai de chōfuku shinai yō ni natteru no? Soretomo madoguchi goto ni ichiban kara?

Is each number unique, or do they start again for each service? in other languages